Created attachment 76060 [details]
sorry was typo in Summary. Thjs is pang and not pong.
1.20 seems to be last version which means development of Pang isn't going on for a while. HOMEPAGE and SRC_URI aren't valid now. It's probably possible to obtain tarball somewhere else but the lack of developer's attention means that ebuild maintainer cannot rely on developer's support as appropriate.
It's ok. You win. I'll never make new ebuilds.